<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Vue示例代码4</title>
</head>
<body>
    <div id="app">
        <h1 v-if="isShow">表达式的值为真，就能显示</h1>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script type="text/javascript">
    var vm=new Vue({
        el:'#app',
        data:{
            isShow:true
        }
    });
</script>
</body>
</html>